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Anybody know what this part does??

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So there I was, rejetting my carb. (1996 XR400). I'm told the carb has been "updated to 1998 specs", whatever that means. I remove the bowl and find this laying on the bottom:

23201093741.jpg

I looked on the parts fiche and found that it slides up over the main jet. I pushed it back up there, but it didn't stay. So I just took it out. Started bike up and it runs fine, doesn't seem to have any effect on the carb at all. Question is: Anybody know what it does? Do I really NEED to have it in there? It seemed to just rattle loose and fall to the bottom of the bowl anyways...

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Yo C.

You can get the little bugger to stay up there by slightly pinching it, but don't break it! Or you can also dab a tiny bit of grease on it to get it to stay. Once the bowl is all on it's held up.

I think it's just an anti-splash thingie.

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It's an anti-slosh baffle. It's slotted so there is only one way to install it (narrow side up). It *is* possible to install the float bowl while keeping this thing in place. Just try again.

I'm not sure about pinching it; it doesn't seem like the kind of plastic that likes to be squeezed.

Cheers and good luck with that!

d.

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Be sure to put it back in. It prevents fuel starvation around the main jet when the bike is in a high G situation like landing from a jump.

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Be sure to put it back in. It prevents fuel starvation around the main jet when the bike is in a high G situation like landing from a jump.

Or tackling a set of whoops or rough terrain. You will need it.

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98 specs? My '82 and '94 had it. So did my friends '83 honda quad. It is indeed an anti-slosh guard. It won't decrease performance.

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These guys have no idea what they are talking about.

The white thing is a hat. It belongs to the little fella who lives in your float-bowl and shovels the fuel into the jets. (duh - how did you THINK the fuel got there... I mean liquids do not flow UPHILL). Probably the fella was not there when you took the carb off; that hapens a lot especially if you work in the evenings since these guys like to party (hey you GOTTA be a party animal to work submerged in gasoline half the day) and was probably out for the night.

My suggestion is to replace the unit with a small baseball cap off of a Ken Doll or a GI Joe doll. Leave the new hat in the bowl when your reassemble the carb. The fuel guy will love you for it and you will see a definate performance advantage.

Bad luck if your particular fuel person is a chick cause then she's gonna be pissed that you took her cool white hat. If this is the case get used to a boggy bike cause as the saying goes "Fuel hath no fury like a woman scorned"

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These guys have no idea what they are talking about.

The white thing is a hat. It belongs to the little fella who lives in your float-bowl and shovels the fuel into the jets. (duh - how did you THINK the fuel got there... I mean liquids do not flow UPHILL). Probably the fella was not there when you took the carb off; that hapens a lot especially if you work in the evenings since these guys like to party (hey you GOTTA be a party animal to work submerged in gasoline half the day) and was probably out for the night.

My suggestion is to replace the unit with a small baseball cap off of a Ken Doll or a GI Joe doll. Leave the new hat in the bowl when your reassemble the carb. The fuel guy will love you for it and you will see a definate performance advantage.

Bad luck if your particular fuel person is a chick cause then she's gonna be pissed that you took her cool white hat. If this is the case get used to a boggy bike cause as the saying goes "Fuel hath no fury like a woman scorned"

Holy smokes! Now THAT one took some thought!! Ha Ha!! :thumbsup:

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All this time I was hoping it was the flux capacitor:p

If it was, 88mph IS NOT the magic number!

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